Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5092350 | Cigarette manufacture | Hugh M. Arthur, Ian Ramsay, Iain E. Ross | 1992-03-03 |
| 4944314 | Cigarette ends testing | — | 1990-07-31 |
| 4635653 | Spark perforation of web material | Derek H. Dyett, Robert E. Williams | 1987-01-13 |
| 4489736 | Ejection of faulty cigarettes | — | 1984-12-25 |
| 4377743 | Cigarette rod optical inspection | John G. Dowding | 1983-03-22 |
| 4325250 | Cigarette testing device | John G. Dowding, Robert E. Williams | 1982-04-20 |
| 4307963 | Cigarette end testing | — | 1981-12-29 |
| 4279144 | Testing ventilated cigarettes | — | 1981-07-21 |
| 4269201 | Cigarette weight control systems | Gordon Powell, Albert Simmons | 1981-05-26 |
| 4219727 | Apparatus for perforating a moving web | — | 1980-08-26 |